Early shellfishing was a subsistence occupation. Commercial
production began with shrimp canning after the Civil War.
There are
three types of shrimp available in Louisiana Gulf waters: the white (most
important economically), the brown, and the pink. Louisiana has rich fishing
waters, and although fishing accounts for less than 1 percent of the annual
gross state product, the annual catch (by weight) landed in Louisiana is
greater than that of any other state, except Alaska. Shrimp is the second
largest catch by volume, but first in value.
Shrimp enter the bays and
bayous of Louisiana from the depths of the Gulf of Mexico, coming in as larvae
and clinging to the reedy underbursh where they eat dentrites (tiny pieces of
decaying organic matter). By August, the shrimp fantails are large enough to
allow emmigration into the Gulf again.
Shrimp have thick- muscled
abdomens, which they contract rapidly in making their sudden, backward-swimming
escapes. The shrimp meat served in numerous dishes is the curved muscle
extracted from the abdomen. Shrimp are structurally similar to lobsters and
crayfish, but lack enlarged pincers and are flattened laterally instead of
horizontally. The animals are usually transparent or are green or brown in
color.
With the temperature drops of the fall, a mass exodus to the
Gulf takes place as the shrimp seek warmer waters. Shrimp boats trawl in the
paths of the shrimp. In the early 1900's, along with the introduction of the
trawl net from Atlantic waters, ice and canning led to the doubling to the
shrimp harvest in just one year. The departure of the shrimp fleet is a great
occasion. Festivals are held to celebrate the advent of harvest and the
blessing of the fleet as family and friends journey into the bountiful Gulf
waters.
Today, the oil industry causes concerns for shrimpers. A large
oil spill, damaged piping, or debris could destroy wetlands that serve as
shrimp growth areas.
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